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You may have a central heating leak if your Pressure Relief Valve is not leaking. A slow leak in your heating system could be the cause of your boiler losing pressure.

A Pressure Relief Valve regulates pressure to prevent damage to pipes, the boiler, and the entire central heating system. The PRV is connected to a discharge pipe that directs the expelled water safely away.

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Our heating leak experts are able to detect leaks on central heating systems using non-destructive techniques including Thermal Imaging, Acoustic Listening Devices and Tracer Gases.

A properly functioning expansion vessel accommodates water influx as pressure rises and releases it as the temperature, and consequently the pressure, drops.

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If you notice that the PRV leaks water, especially during water heating, it likely indicates that your expansion vessel is faulty or requires repressurization.

Corrosion, material degradation, or high pressure can lead to a malfunctioning PRV, often indicated by leaking water or a hiss sound.

Pressure Relief Valves (PRVs) are crucial components in maintaining the safety and efficiency of a central heating system. PRV’s are designed to release water and reduce pressure, thus preventing potential damage.